早期视觉皮层的结构共变与PTSD症状有负面关联:ENIGMA PTSD工作组的一项大型分析
Nathaniel G Harnett1, Soumyaa Joshi2, Poornima Kumar1
1Division of Depression and Anxiety, McLean Hospital, Belmont, MA, USA; Department of Psychiatry, Harvard Medical School, Boston, MA, USA.
概括
早期视觉皮层中的结构共变与创伤后应激障碍 (PTSD) 症状有关. 这种神经特征可能表明不同受创伤影响的人群的脆弱性.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 脑部成像 脑部成像
背景情况:
- 确定创伤后应激障碍 (PTSD) 的神经特征对于精确精神病学和治疗至关重要.
- 新兴研究表明,早期视觉区域的结构共变性与后期PTSD发展之间存在联系.
- 需要进行大规模的研究来确认这种神经特征是否是不同人群中强大的脆弱性标志物.
研究的目的:
- 研究早期视觉皮层结构共变性与PTSD症状或感知压力之间的关联.
- 在一个大,异构的样本中验证先前识别的多式联通模式.
- 为了确定这种神经特征是否与PTSD有关.
主要方法:
- 对ENIGMA-PTSD (n=2,814) 和人类连接组项目 - 年轻成年人 (HCP-YA) (n=890) 数据集的分析.
- 利用从创伤幸存者的多式模式中获得的结构共变性.
- 采用线性混合效应模型来评估与PTSD症状和感知压力的关联.
主要成果:
- 在ENIGMA-PTSD数据集中,早期视觉皮层协变负载和PTSD症状之间发现了负相关性.
- 即使考虑到童年虐待,这种关联仍然很重要.
- 没有观察到与抑郁症状的关系,在HCP-YA数据集中也没有发现与感知压力的关联,支持PTSD症状特异性.
结论:
- 早期视觉皮层的结构共变性在一个大,国际和异质样本中与PTSD症状密切相关.
- 需要进一步的研究来阐明在视觉皮层中这些结构性改变背后的具体机制.
- 了解这些机制可以提高我们对创伤后精神病理学的理解.
相关概念视频
01:27Post-traumatic Stress Disorder
114
Post-traumatic stress disorder (PTSD) is a psychiatric condition that arises following exposure to traumatic events such as natural disasters, forced displacement, or severe accidents. It significantly impairs individuals' ability to cope with daily activities and disrupts their emotional and psychological equilibrium.
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...
114
01:21Association Areas of the Cortex
6.3K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
6.3K
01:12Visual Agnosia
304
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
304